Improvement in sash-fasteners



T. P. YATES. Sash-Fastener.

Patented Feb. 4, .1879.

1191mm III,

No. 2l2,083.-

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INVENTOR ATTORNEY NJETERS, PHOTO-LITMOGRAPHER, WASHINGTION, D Q

THOMAS P. YATES, OF FAOTORYVILLE, NEW YORK.

IMPROVEMENT IN SASH-FASTENERS.

Specification forming part of Letters Patent No. 212,083, dated February4, 1879 application filed October 26, 1878.

To all whom it may concern:

Be it known that I, THOMAS P. YATES, of Factoryvillc, in the county ofTioga and State of New York, have invented a new and val nableImprovement in Sash-Fasteners; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the annexed drawings,making a part of this specification, and to the letters and figures ofreference marked thereon.

Figure l of the drawings is a representation of a front view of mysash-fastener applied. Fig. 2 is a longitudinal section of the same, andFigs. 3 and 4 are details.

This invention has relation to improvements in fastenings forwindow-sashes and doors; and the nature of the invention consists in theconstruction and novel arrangement of parts, as hereinafter shown anddescribed, and pointed out in the claim.

In the accompanying drawings, the letter A designates the bottomaail ofa sash, having in its end a deep recess, a, in which is seated thelocking-bolt I3. The inner end of this bolt is rabbeted, forming a tang,b, with a square shoulder at its junction with the body of the bolt, asshown at c, Fig. 2.

At the bottom of recess a is a spring, S, usually of spiral form, thatis engaged by the bolt-tang aforesaid, and bears at one end against thebottom of the recess and at the other against the shoulder c of thebolt, which is projected from the recess into a suitable catch-aperturein the adjacent wall of the window-jamb by the resilience of saidspring. The bolt is provided with a notch, e, of rectangular form.

B indicates a face-plate, secured in any desired manner to rail A, andprovided upon its inner side with a crank-plate, O, pivoted thereto, andhaving a projecting spur, d, that engages the recess 0 of the bolt, anda tang, e, that projects outward through a curved slot, 8, in plate B,and is provided with a knob, f, or its equivalent, by means of which thecrankplate is actuated to retract the bolt in its recess a and compressthe spring S. This being accomplished the sash may be readily raised. Asshown in Fig. 3, one of the edges of the crank is straight.

0 indicates a cam applied upon a short shaft, g, extending through andhaving its bearings in the face-plate, and provided with a handle, it,upon its outer end,by means of which the said cam is turned and itsstraight edge brought in contact with the corresponding edge of thecrank-plate. When thus engaged the crank-plate is incapable of rotating.

The operation of the fastening is as follows: The operator seizes theknob and presses it down, thus retractingthe bolt. The handle gis thenthrown up into the position shown in Fig. 1, and the cam thus broughtinto engagement with the cran k-plate, locking the latter againstrotation, and consequently holding the bolt retracted in its recess. Thesash may now be thrown up in the usual way by taking hold of the handleJ on the face-plate. The same device is applicable to either sash, andthe contiguous faces of the window-jambs may have a number oflatch-apertures, arranged one above the other, so that the sash may belocked at various elevations.

What I claim as new, and desire to secure by Letters Patent, is-- In asash-fastener, the combination, with a rail, A, having a recess, 0,containing a spring, S, and a bolt, B, which is provided with arectangular notch, e, of a face-plate having a curved slot, 8, acrank-plate, O, journaled in said face-place, and provided with a tang,e, engaging said slot, and a spur, d, engaging the notch e in the bolt,and a cam, 0, having its bearin gs also in the face-plate, and adaptedto engage the crank-plate O, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

THOMAS P. YATES.

Witnesses WM. W. WARNER, J. V. Yarns.

